MN VISOCOLOR® HE test kit ammonium, 0.02 - 0.50 mg/l NH4+


MN VISOCOLOR® HE test kit chlorine, free and total chlorine, 0.02 - 0.60 mg/l Cl2


MN VISOCOLOR® HE test kit cyanide, 0.002 - 0.04 mg/l CN


MN VISOCOLOR® HE test kit iron, 0.01 - 0.20 mg/l Fe


MN VISOCOLOR® HE test kit copper, 0,04 – 0,50 mg/l Cu2+


MN VISOCOLOR® HE titration test kit acidity AC 7, 0.2 - 7 mmol/l


MN VISOCOLOR® HE titration-test kit alkalinity AL7 (Capacity of the acid) 0,2 – 7 mmol/l


MN VISOCOLOR® HE titration test kit calcium CA 20, 0.5 - 20 °d/0.1 - 3.6 mmol/l


MN VISOCOLOR® HE titration test kit carbonate hardness C20, 0,5–20 °d und 0,2–7 mmol/l


MN VISOCOLOR® HE titration test kit chloride CL 500, 5 - 500 mg/l Cl


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MN VISOCOLOR® HE test kit ammonium, 0.02 - 0.50 mg/l NH4+

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108.48
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VISOCOLOR® HE Ammonium • Colorimetric determination of ammonium • Monochloramine is derived from ammonium ions as a result of the effect of chlorine in the alkaline range. • Combined with thymol, this forms a blue indophenol dye. (Reaction principle analogous to APHA 4500-NH3, ISO 7150-1 & DIN 38406) • Type: high sensitive test kit • Range: 0.0 · 0.02 · 0.04 · 0.07 · 0.10 · 0.15 · 0.20 · 0.30 · 040 · 0.50 mg/l NH4+ • Sufficient for: 110 determinations • Shelf life at least :12 months • Sea water suitability: no • Detectable with PF-11: no • Ammonium ions occur primarily in domestic waste waters, but frequently also in industrial waste waters. • In surface and ground waters ammonium ions indicate decomposition of animal or vegetable substances. • Control of the ammonium values is therefore important to the water supply.

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MN VISOCOLOR® HE test kit chlorine, free and total chlorine, 0.02 - 0.60 mg/l Cl2

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108.48
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VISOCOLOR® HE Chlorine: Colorimetric determination of free and total chlorine. Features: • At a pH value of 5 – 6 free chlorine reacts with N,N-diethyl-1,4-phenylene diamine (DPD) to form a red-violet dye. • In the presence of iodide ions the content of total chlorine can be determined, too. (Reaction principle is analogous to APHA 4500CL G & DIN EN ISO 9963-1) Specifications: • Type: high sensitive test kit • Range: 0.0 · 0.02 · 0.04 · 0.06 · 0.10 · 0.15 · 0.20 · 0.30 · 0.40 · 0.60 mg/l Cl2 • Sufficient for: 2 x 160 determinations • Shelf life at least: 24 months • Sea water suitability: yes • Detectable with PF-11: no • The addition of chlorine to swimming pools, water reservoirs and water mains is an approved procedure to rid the water of germs. • With the correct dose harmful microorganisms are destroyed, many impurities removed and the growth of algae is prevented. • However it is imperative that the chlorine content is regularly checked, since excessive chlorine not only impairs the smell and taste of the water but can be hazardous. • One distinguishes between free chlorine and bound chlorine (chloroamines); the sum of both is called total chlorine.

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MN VISOCOLOR® HE test kit cyanide, 0.002 - 0.04 mg/l CN

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106.56
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VISOCOLOR® HE Cyanide • Colorimetric determination of cyanide • Cyanide ions react with chlorine to form cyanogen chloride, which splits the pyridine ring and forms glutaconedialdehyde. • By aldol condensation with barbituric acid a violet polymethine dye is produced. • Type: high sensitive test kit • Range: 0.0 · 0.002 · 0.004 · 0.007 · 0.010 · 0.015 · 0.020 · 0.025 · 0.030 · 0.040 mg/l CN– • Sufficient for: 55 determinations • Shelf life at least: 12 months • Sea water suitability: yes • Detectable with PF-11 no • Cyanide ions are very toxic because they block the iron of the respiratory enzyme and thus inhibit the oxygen transport. • For humans 1 mg cyanide per kg body weight is considered lethal. • This test covers free cyanide and cyanide complexes which can be destroyed with chlorine. • If interfering substances like heavy metal complexes, thiocyanate, sulphide, dyes or aromatic amines are present, a distillation according to DIN 38 405-D 13–2–2 must precede the cyanide test. • For the determination of easily released and total cyanide as well as for the determination of cyanide in stone fruit spirits please contact MACHEREY-NAGEL for special instructions.

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MN VISOCOLOR® HE test kit iron, 0.01 - 0.20 mg/l Fe

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108.48
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VISOCOLOR® HE Iron • Colorimetric determination of iron • Triazine method: iron(II) ions react with a triazine derivative to form a violet complex. • Iron(III) ions are reduced and thus also determined. • Type: high sensitive test kit • Range: 0.0 · 0.01 · 0.02 · 0.03 · 0.04 · 0.05 · 0.07 · 0.10 · 0.15 · 0.20 mg/l Fe • Sufficient for: 300 determinations • Shelf life at least: 24 months • Sea water suitability: no • Detectable with PF-11 no • Natural waters as well as waste waters often contain some iron. • It can be present as Fe(II) or Fe(III) ions if the pH value of the water is below 3 or if the water is free of oxygen. • At higher pH values Fe(III) forms an insoluble oxyhydrate. • Frequently the sample is in a transition state with finely dispersed iron oxides. • In waste water and natural water containing humic acids iron is often present in the form of a complex salt. • The VISOCOLOR® test kits only determine iron which is present in dissolved form as Fe2+ or Fe3+ ions. • Iron complexes are not covered unless they are decomposed by oxidation with nitric acid and sulphuric acid.

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MN VISOCOLOR® HE test kit copper, 0,04 – 0,50 mg/l Cu2+

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108.48
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VISOCOLOR® HE Copper • Colorimetric determination of copper • In weakly alkaline medium copper(II) ions react with cuprizone forming a blue colour complex. • Strongly acidic and buffered solutions have to be adjusted to pH 9 with ammonia for the test. • Iron(II), chromium(VI), nickel and manganese ions interfere in concentrations above 10 mg/l. • Cr(III) concentrations which exceed the copper concentration cause low results, but can be eliminated by oxidation to chromate using ammonium peroxodisulphate / sulphuric acid). • Cobalt ions form a red colour complex which, depending on the copper concentration, can already interfere above 1 mg/l. Cyanides and sulphides present in excess of 1 mg/l cause low results. • Type: high sensitive test kit • Range: 0.0 · 0.04 · 0.07 · 0.10 · 0.15 · 0.20 · 0.25 · 0.30 · 0.40 · 0.50 mg/l Cu2+ • Sufficient for: 100 determinations • Shelf life at least: 24 months • Sea water suitability: yes • Detectable with PF-11: no • In water copper(II) can be found in dissolved as well as in undissolved form. • Copper(I) compounds and undissolved copper(II) compounds are not determined unless they are decomposed with concentrated nitric acid prior to the test.

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MN VISOCOLOR® HE titration test kit acidity AC 7, 0.2 - 7 mmol/l

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52.22
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VISOCOLOR® HE Acidity AC 7 • Titrimetric determination of acidity (base capacity) • Titrimetric determination of acids with sodium hydroxide solution against the p indicator. • Type: high sensitive titration test kit • Range: 1 syringe last for the determination of 0.2 – 7 mmol/l H+, 1 gradation mark = 0.2 mmol/l H+ • Sufficient for: 200 tests with an average acid content of 4 mmol/l H+ • Shelf life at least: 2 years • Sea water suitability: yes • Detectable with PF-11: no • In natural unpolluted waters mainly carbonic acid is present, but also humic acids. • With this test kit all acids, i. e. also those present in industrial waters, can be determined.

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MN VISOCOLOR® HE titration-test kit alkalinity AL7 (Capacity of the acid) 0,2 – 7 mmol/l

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52.22
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VISOCOLOR® HE Alkalinity AL 7 • Titrimetric determination of alkalinity (acid capacity) • Titrimetric determination of the alkalinity with hydrochloric acid against the m indicator. • Type: high sensitive titration kit • Range :1 syringe is sufficient for the determination of 0.2 – 7 mmol/l OH– (corresponds to 10 – 350 mg/l CaCO3); 1 gradation mark = 0.2 mmol/l OH– • Sufficient for: 200 tests with an average acid content of 4 mmol/l OH– • Shelf life at least: 2 years • Sea water suitability: yes • Detectable with PF-11: no • All compounds which cause a pH increase above pH 7 are determined, e. g. hydroxide, carbonate, hydrogen carbonate etc..

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MN VISOCOLOR® HE titration test kit calcium CA 20, 0.5 - 20 °d/0.1 - 3.6 mmol/l

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52.22
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Titrimetric determination of calcium. Features/ Specifications: • Complexometric titration afer precipitation of the magnesium salts. • Type: high sensitive titration kit • Range: 1 syringe is sufficient for the determination of 0.5 – 20 °d or of 0.1 – 3.6 mmol/l Ca2+ (corresponds to 4 – 145 mg/l Ca2+). • Sufficient for: 200 tests with an average calcium hardness of 10 °d or 1.8 mmol/l Ca2+ • Shelf life at least: 2 years • Sea water suitability: yes, after dilution 1:5 and addition of 6 drops Ca-1 • Detectable with PF-11: no • Calcium is widely distributed in nature in rocks and in water. • Water containing calcium and magnesium causes problems in industry as well as in households, since during boiling calcium carbonate is precipitated as detrimental boiler scale and since calcium ions inhibit the foaming of soaps.

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MN VISOCOLOR® HE titration test kit carbonate hardness C20, 0,5–20 °d und 0,2–7 mmol/l

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52.22
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VISOCOLOR® HE Carbonate Hardness C20 • Titrimetric determination of carbonate hardness (p/m Alkalinity) • The determination is preformed as titration with hydrochloric acid against a mixed indicator, which changes colour at pH 4.5. (Reaction principle analogous to DIN EN ISO 9963-1 C2 and C24) • Type: high sensitive titration kit • Range: syringe is sufficient for the determination of 0.5 - 20 °d or 0.2 – 7 mmol/l H+ (corresponds to 10 – 350 mg/l CaCO3) 1 gradation mark = 0.5 °d = 0.2 mmol/l H+ • Sufficient for about: 200 tests with an average carbonate hardness of 10 °d or 4 mmol/l H+ • Shelf life at least: 2 years • Sea water suitability: yes • Detectable with PF-11: no • Carbonate hardness is that portion of calcium and magnesium ions which are present as carbonate or hydrogen carbonate. • Normally the carbonate hardness is smaller than the total hardness. • If the carbonate hardness is larger than the total hardness, you should trace the origin of this abnormal conditions, e. g. discharge of alkali hydrogen carbonates or high buffer capacity.

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MN VISOCOLOR® HE titration test kit chloride CL 500, 5 - 500 mg/l Cl

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71.14
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VISOCOLOR® HE Chloride CL 500 • Titrimetric determination of chloride • Mercurimetric titration • Type: high sensitive titration kit • Range: 1 syringe is sufficient for the determination of 5 - 500 mg/l Cl–, 1 gradation mark = 5 mg/l Cl– • Sufficient for: 300 tests with an average chloride ion concentration of 200 mg/l Cl– • Shelf life at least: 2 years • Sea water suitability: yes, after dilution 1:50 • Detectable with PF-11: no • Chloride ions occur in all natural waters. • Their concentration depends on the geological and local situation. • In waste waters and polluted rivers the chloride concentration can reach high values.

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